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:root{--ink:#182431;--paper:#fff;--accent:#b9ccff;--soft:#f0f4fb;--muted:#526277;--line:#c6d1e1;--focus:#174bea;--sans:'Segoe UI',Arial,sans-serif;--mono:Consolas,'Courier New',monospace}
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@media(max-width:1000px){.model-hero{gap:40px}.specimen-grid{grid-template-columns:1fr 1fr}.calculator{gap:30px}}@media(max-width:700px){.model-hero{grid-template-columns:1fr;padding-top:40px}.specimen-board{max-width:480px}.model-principles{grid-template-columns:1fr;gap:13px}.model-principles b{display:inline;margin-right:15px}.specimen-grid{grid-template-columns:1fr}.specimen-card{min-height:0}.specimen-top{margin-bottom:22px}.calculator{grid-template-columns:1fr}.calc-panel{position:static}.calc-fields{grid-template-columns:1fr}.calc-panel output{font-size:2.8rem}.specimen-board h2{font-size:2.3rem}}
.calc-panel{min-width:0}.calc-panel output{overflow-wrap:anywhere}.calc-panel dl{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.calc-panel dd{text-align:right;overflow-wrap:anywhere}
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.topic-map{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);margin:30px 0 55px;background:#fff}.topic-map a{display:flex;flex-direction:column;gap:10px;min-height:150px;padding:24px;border-right:1px solid var(--line);text-decoration:none}.topic-map a:last-child{border-right:0}.topic-map a:hover{background:#f0f4fb}.topic-map strong{font-size:1.15rem;line-height:1.2}.topic-map span{font:10px/1.5 var(--mono);color:#174bea;text-transform:uppercase;letter-spacing:.08em}.topic-map small{color:var(--muted);line-height:1.5}.guide-path{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:25px 0 45px}.guide-path article{border:1px solid var(--line);padding:24px;background:#fff}.guide-path h3{margin:12px 0}.guide-path h3 a{text-decoration:none}.guide-path h3 a:hover{text-decoration:underline}.guide-path .step{font:10px var(--mono);color:#174bea;letter-spacing:.08em}.field-check{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:24px 0}.field-check div{border:1px solid var(--line);padding:18px;background:var(--soft)}.field-check strong{display:block;margin-bottom:7px}.prose blockquote{margin:28px 0;padding:22px 26px;border-left:3px solid #174bea;background:#f0f4fb;font-size:1.08rem}.prose blockquote p:last-child{margin-bottom:0}.source-status{display:inline-block;padding:5px 9px;background:#eef3ff;color:#174bea;font:10px var(--mono);letter-spacing:.05em;text-transform:uppercase}.coverage-note{padding:22px;border:1px dashed #174bea;background:#f8faff;margin:28px 0}.coverage-note p:last-child{margin-bottom:0}
.field-visual{margin:30px 0 42px;border:1px solid var(--line);background:#f8faff}.field-visual img{display:block;width:100%;height:auto}.field-visual figcaption{display:flex;justify-content:space-between;gap:24px;align-items:start;padding:18px 20px;border-top:1px solid var(--line);background:#fff;font-size:.82rem;line-height:1.55}.field-visual figcaption strong{color:var(--ink)}.field-visual figcaption span{color:var(--muted);max-width:620px}.cabinet-visual{margin:30px 0 45px}.prose .field-visual{margin-left:min(-6vw,-45px);margin-right:min(-6vw,-45px)}
@media(max-width:800px){.source-diagram .diagram-hint{display:block}}
@media(max-width:800px){.topic-map{grid-template-columns:1fr 1fr}.topic-map a:nth-child(2){border-right:0}.topic-map a{border-bottom:1px solid var(--line)}.topic-map a:nth-last-child(-n+2){border-bottom:0}}
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@media(max-width:800px){.prose .field-visual{margin-left:0;margin-right:0}.field-visual{overflow-x:auto;overscroll-behavior-inline:contain}.field-visual::before{content:"Swipe to inspect the field plate  →";display:block;position:sticky;left:0;width:calc(100vw - 42px);padding:10px 14px;border-bottom:1px solid var(--line);background:#fff;font:10px/1.5 var(--mono);color:var(--muted);box-sizing:border-box}.field-visual img{min-width:720px;max-width:none}.field-visual figcaption{display:block;min-width:720px}.field-visual figcaption span{display:block;margin-top:7px}}
@media(max-width:700px){.source-diagram figcaption{display:block;padding:18px}.source-diagram .diagram-full{display:inline-block;margin-top:18px}.diagram-scroll{padding:16px 12px}.source-diagram{margin:20px 0 28px}}